You can check the local 2nd had advertisement sites for each country. Here in Spain you can go to:
http://motos.coches.net/ocasion/listado.cfm
Under "Marca" (Brand) select "Harley Davidson"
Then press the "Buscar" (Search) button
You will get a listing of all H-Ds for sale in Spain. Here H-Ds are quite expensive and the market is small (more or less like old Prosches)